Re: C++ Foreign Function Interface

[Arun Isaac <theroarofthedragon@gmail.com>]

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Chris Vine <chris@cvine.freeserve.co.uk> writes:

> If you want to link with a C++ library when using libguile (and, say,
> want to make functions in the library accessible to scheme code using
> scm_c_define_gsubr()), then you need to declare interface functions as
> extern "C" so they have C language linkage.  That will amongst other
> things suppress name mangling and make sure the correct calling
> convention is used.  The same applies if you are planning to use, say,
> pointer->procedure.

I'm trying to use the GNU Radio library (written in C++) from scheme.
While I can't really modify the library itself, I can wrap functions I
need in C, and then call them using Guile's C FFI. I'll do that.

Hans Åberg <haberg-1@telia.com> writes:

> You will have to write it yourself. It has been discussed before on
> this list [1].

In one of the messages in the earlier thread, I found a link to
https://isocpp.org/wiki/faq/mixing-c-and-cpp

That page gives me some idea of how I can write C wrappers for my C++
library.


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